Given investment horizon of 30 days, Yahoo! Inc. is expected to generate 0.99 times more return on investment than Oracle. However, Yahoo! Inc. is 1.01 times less risky than Oracle. It trades about -0.03 of its potential returns per unit of risk. Oracle Corporation is currently generating about -0.32 per unit of risk. If you would invest 1,557 in Yahoo! Inc. on April 26, 2012 and sell it today you would lose (21.00) from holding Yahoo! Inc. or give up 1.35% of portfolio value over 30 days.
Diversification
Significant diversification
Overlapping area represents amount of risk that can be diversified away by holding Yahoo! Inc. and Oracle Corp. in the same portfolio (assuming nothing else is changed)
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